JPH0549049B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field of the Present Invention> The present invention relates to a combination that combines the weight values of objects to be weighed stored in a plurality of weighing hoppers from a plurality of pool hoppers and discharges the target weight at once. The present invention relates to a weighing device, and more particularly to a semi-automatic combination weighing device that manually supplies objects to be weighed to a pool hopper.

<Prior art> (Figs. 8 to 9) A combination weighing device is used to efficiently collect objects to be weighed that have individual weight variations, such as confectionery, fruits, vegetables, or meat, by a target weight. However, for large and heavy objects to be weighed (e.g. cabbage, broilers, etc.),
2. Description of the Related Art In order to prevent damage to objects to be weighed due to falling or the like during transport, supply, and discharge operations, semi-automatic combination weighing devices have been used that manually feed objects to be weighed.

In a combination weighing device, the probability of obtaining a combination close to the target weight generally increases as the number of weighing sections (number of weighing hoppers) increases, but if there are many input ports for weighing objects, the efficiency of manually feeding objects to be weighed decreases. . For this reason, the objects to be weighed fed to one pool hopper are
Conventionally, there have been combination weighing devices configured to selectively supply a plurality of weighing hoppers.

8 and 9 show an example of such a conventional semi-automatic combination weighing device.

FIG. 8 is a schematic plan view of a conventional semi-automatic combination weighing device, and FIG. 9 is a schematic sectional view taken along the line -' in FIG.

In the figure, reference numeral 1 denotes a housing 1 whose width is longer than its depth, and N slots 1b _-1 to 1b _-o are provided in a row in the width direction of the housing on its upper surface 1a. The objects to be weighed that are manually input from each input port are stored in pool hoppers 2 _-1 to 2 _-o having openings that match the input ports 1b _-1 to 1b _-o .

The pool hoppers 2 _-1 to 2 _-o are installed to be able to slide freely in the front and back direction, and on the top thereof, there are shutters 3 _-1 to 3 _-o , 4 _- extending in the sliding direction from both ends of the opening surface. ₁ to 4 _-o are formed.

In addition, at the bottom of the pool hoppers _2-1 to 2 _-o , there are two independent discharge gates _5-1 to 5 _-o , 6, respectively.
_-1 to 6 _-o are provided. Poolhoppa 2 _-1 ~
The discharge gates _5-1 to 5 _-o on one side of 2 _- o open when the pool hopper _2-1 to 2 _-o slides a predetermined distance in the direction a, and the discharge gates _6-1 to 6 _-o on the other side open. ,
The pool hoppers _2-1 to 2 _-o open when they slide a predetermined distance in the b direction.

At the lower front and rear of the pool hoppers _2-1 to 2 _-o , there are measuring hoppers 9- connected to measuring instruments (not shown) in the control cases _7-1 to 7 _-o , _{8-1 to} 8 _{-o . 1} ~ 9 _-o , 10
_-1 to 10 _-o are installed facing each other, and discharge gates 11 -1 to 11 _- are provided at the lower part of the opposite side of each weighing hopper 9 _-1 to 9 _-o and 10 _-1 to _{10 -o} , respectively. _o ,
12 _-1 to 12 _-o are provided.

In addition, each control case _7-1 to 7 _-o , _8-1 to 8 _-o has a discharge gate 11-1 _to 11 for each weighing hopper _9-1 to 9 _-o , _{10-1 to} 10 _-o . _-o , _12-1 to 12 _-o are each housed with a drive mechanism (not shown) for opening and closing them.

Therefore, the objects to be weighed discharged from the pool hoppers 2 _-1 to 2 _-o that slid in the direction a are accommodated in the weighing hoppers 9 -1 to 9 _-o , respectively, and the objects to be weighed are stored in the weighing hoppers 9 _-1 to ₉ -o that slide in the direction b. The objects to be weighed discharged from 2 _-o are stored in weighing hoppers _10-1 to 10 _-o , respectively.

Note that while the pool hoppers _2-1 to 2 _-o slide in the a direction or the b direction and the object to be weighed is discharged (that is, the discharge gates _5-1 to 5 _-o or _6-1 to
6 _-o is open), the shutters 4 _-1 to 4 _-o or 3 _-1 to 3 _-o block the input ports 1b _-1 to 1b _-o to prevent the next object to be weighed from being erroneously loaded. There is.

The pool hoppers _2-1 to 2- _o slide in the direction a to accommodate the object to be weighed in one of the weighing hoppers _9-1 to 9 _-o , and then return to the position where the opening surface matches the input port 1b. , when the next object to be weighed is input, b
The objects to be weighed are accommodated in the weighing hoppers 10 _-1 to 10 _-o by sliding in the direction.

In this way, each weighing hopper 9 _-1 to 9 _-o , 1
The objects to be weighed stored in 0 _-1 to 10 _-o are weighed by the measuring instruments in each control case 7 _-1 to 7 _-o , 8 _-1 to 8 _-o , and this weighing signal is The data is sent to a control unit (not shown).

In the control section, based on each input weight value,
A combination calculation is performed, the optimum combination for the target weight is selected, and the discharge gate of the weighing hopper containing the selected object to be weighed is opened.

A collecting conveyor 13 is installed below each weighing hopper 9 _-1 to 9 _-o , 10 _-1 to _{10 -o} , and the objects to be weighed that have been selected in combination and discharged are carried by the collecting conveyor 13. It is conveyed to the packaging machine 14 and packaged.

During this time, objects to be weighed are sequentially stored in the empty pool hopper and weighing hopper.
The combined ejection action is repeated.

<Problems to be Solved by the Invention> However, in the conventional combination weighing device as described above, two independent weighing hoppers are arranged side by side at a predetermined interval along the moving direction of the pool hopper. The size of the equipment per line is
It is not possible to downsize the product due to restrictions on the dimensions in the direction in which the two weighing hoppers line up and the length of the pool hopper moving mechanism.
Moreover, since the input port is located above the middle of the two weighing hoppers, the distance to the input port for the objects to be weighed becomes longer, or the distance between the input ports becomes wider, making it difficult to input the objects to be weighed. The problem was that it became very difficult to do so.

In addition, the time required for sliding the pool hopper limits the interval at which objects to be weighed are thrown in, making it impossible to feed them at high speed.

In addition, the mechanism for sliding the pool hopper must be able to move the pool hopper itself and the heavy object to be weighed housed therein at high speed, and must also be linked to the opening and closing of the discharge gate of the pool hopper. The driving force requires a complicated mechanism, resulting in extremely high costs.

In addition, twice as many independent weighing hoppers and weighing devices as the number of input ports are required, resulting in high cost and complicated maintenance work.

<Object of the present invention> The present invention has been made in view of the above circumstances, and is a combination of a small size, good workability for manual loading of objects to be weighed, good workability for maintenance, high-speed loading, and low cost. The purpose is to provide a weighing device.

<One Embodiment of the Present Invention> (FIGS. 1 to 6) An embodiment of the present invention will be described below based on the drawings.

FIG. 1 is a schematic plan view of the combination weighing device of the present invention, and FIG. 2 is a sectional view taken along the line -' in FIG. 1.

In the figure, the top surface 15a of the housing 15 has N slots 15b _-1 to 15 in the width direction of the housing 15.
b _-o are provided in a row. Also, a part of the upper surface portion 15a of the casing and a front portion 15c continuous thereto.
is rotatably attached to the housing 15, as shown in FIG.

Pool hoppers 30 _-1 to 30 _-o are arranged below each input port 15b _-1 to 15b _-o , and weighing hoppers 40 _-1 to ₄₀ are arranged below each pool hopper 30 _-1 to 30 -o, respectively. _-o is placed. Each pool hopper 30 _-1 to 30 _-o and each weighing hopper 40 _-1 to 40 _-o are connected to each front part 20a _-1 to each of the control case 20 _-1 to 20 _-o formed in a rectangular parallelepiped shape, respectively.
It is removably attached to 20a _-o .

Front part 20a of control case _20-1 to 20- _{o -1} to 2
At the top of 0a _-o , plate-shaped shutters _21-1 to 21 _-o are provided that slide forward and close the opening surfaces of the pool hoppers _30-1 to 30 _-o .

Furthermore, inside the control cases 20 _-1 to _{20 -o} , there are measuring instruments 26 _-1 to 26 _-o , pool hoppers 30 _-1 to 30 _-o , and weighing hoppers 40 _{-1 to} 40, respectively.
Open and close the discharge gate of 0 _-o , and release the shutter 21 _-1 ~
An opening/closing drive device (not shown) for driving 21 _-o is housed therein. This opening/closing drive device is
All are controlled by a control section which will be described later.

FIG. 3 shows the control case 20 _-1 and the pool hopper 30.
_-1 and weighing hopper 40 _-1 .

In the figure, the front part 20a _-1 of the control case 20 _-1
A projecting piece 22 formed in a U-shape and having both opposing pieces projecting toward the front side of the front part 20a _-1 is disposed on the upper side of the .
_-1 is installed. This projecting piece 22 _-1 is for locking the pool hopper 30 _-1 , and for this purpose, the upper parts of both opposing pieces have a groove 22 a -1 cut downward from the upper end of the front part, and a groove part 22 a _-1 cut downward from the upper end of the rear part. A groove portion 22b _-1 is provided by cutting diagonally downward from the groove portion 22b -1.

Below the protruding piece 22 _-1 , grooves 23a _-1 and 23b _-1 are formed in the same manner as the protruding piece ₂₂ -1 to lock the weighing hopper 40 _-1 , and the control housing 20 _-1 Projecting piece 2 directly connected to measuring instrument 26 _-1 housed inside
_3-1 is provided.

In addition, below both protruding pieces 22 _-1 and 23 _-1 , a pool hopper 30 _-1 and a weighing hopper 40 _-1 are provided.
A drive lever 24 is rotatably connected to an opening/closing drive device in the control case 20 _-1 to drive opening/closing.
a _-1 , 24b _-1 , 25a _-1 and 25b _-1 are provided, respectively.

As shown in FIGS. 3 and 4, the pool hopper _30-1 has a rectangular cylindrical opening at the top and an inverted triangular cross section at the bottom. Discharge gate 31 _-1 ,
32 _-1 is attached rotatably in both outward directions.

The pair of discharge gates 31 _-1 and 32 _-1 are provided so as to be in contact with each other in the lower part, respectively, and bent portions 31a _-1 and 32a are bent from the abutting portions in the direction in which the opposing discharge gates are inclined. _-1 are formed respectively.

Further, a separation plate 33 _-1 is attached to the pool hopper 30 _-1 , which is formed so as to connect the front side and the back side of the pool hopper 30 -1 in a U-shape. Separation plate 33 _-1
The bottom portion 33a _-1 is formed to have a triangular cross section along the bent portions 31a _-1 and 32a _-1 of the discharge gates 31 _-1 and 32 _-1 .

This separation plate 33 _-1 has bilaterally symmetrical arm parts 33b _-1 and 33c _-1 formed on the back side of the hopper, and each arm part 33b _-1 and 33c _-1 has
The actuating pieces 34 _-1 and 35 _-1 formed in a dogleg shape are
It is attached so that it can rotate freely using its central part as a fulcrum. Connecting plates 36 _-1 , _{37b -} are rotatably attached to the arm portions 31b _-1 , _{32b -1} of the discharge gates 31 -1 , 32 _-1 on one end side of the actuating pieces 34 _-1 , 35 _{-1. 1}
is rotatably mounted.

In addition, the operating pieces 34 _-1 , 35 _-1 and the connecting plate 36 _-1 ,
A spring 38 _-1 is installed between each connecting portion of 37b _-1 .
is locked, and the actuating pieces 34 _-1 and 35 _-1 receive force inwardly due to the spring 38 _-1 .
_The stoppers 33d _-1 and 33e -1 protruding from the upper parts of the arms 33b _-1 and 33c _-1 of the separation plate 33 _-1 are actuating pieces 34
_-1 , 35 Since it is in contact with _-1 , both discharge gates 3
When 1 _-1 and 32 _-1 are closed, the actuating piece 34
_-1 , 35 _-1 and the connecting plates 36 _-1 , 37b _-1 are arranged substantially on a straight line, respectively.

The intermediate hopper 30 _-1 is connected to the protruding piece _{22 -1 of the control case 20 -1 at} the upper part of the back side of the pool hopper 30 -1.
A U-shaped locking portion _39-1 is provided for locking. The locking portion 39 _-1 is formed by horizontally suspending two front and rear support rods 39c _-1 and 39d _-1 between opposing pieces 39a _-1 and 39b _-1 .

The two support rods 39 of this locking portion 39 _-1
c _-1 and 39d _-1 are respectively locked in the grooves 22a _-1 and 22b -1 provided at the front and back of the protruding piece 22 _-1 of the housing 20 _-1 , and the pool hopper _{30 -1 is} connected to the control housing 20 _{- 1}
is installed on.

In addition, the discharge gate 31 of the pool hopper _30-1
-1 , 32 While one of _-1 is open, control housing 2
The shutter 21 _-1 of 0 _-1 is controlled to slide forward and close the opening surface of the pool hopper 30 _-1 .

The weighing hopper 40 _-1 disposed below the pool hopper 30 _-1 has an internal volume approximately twice that of the pool hopper 30 _-1 , and is formed in a substantially similar shape.

That is, the weighing hopper _40-1 is
As shown in the figure, the upper part is open and the lower part has an approximately inverted triangular cross section, and a pair of discharge gates 41 _-1 and 42 _-1 are attached to the inclined parts on both sides.

In addition, at the bottom of the discharge gates 41 _-1 and 42 _-1 ,
Bent parts 41a _-1 and 42a _-1 are formed which are bent in the direction of inclination of the opposing discharge gates, and similarly to the pool hopper 30 _-1 , these bent parts 41a _-1 and 42
A bottom portion 43 with a triangular cross section formed along a _-1
A U _- shaped separation plate 43 _-1 having a diameter a -1 is attached to connect the front side and the back side of the weighing hopper 40 _-1 .

The separation plate 43 _-1 has symmetrical arm parts 43b _-1 and 43c _-1 formed on the back side of the hopper, and the arm parts 43b _-1 and 43c _-1 have an actuating piece 44 in the same way as described above. _-1 , _45-1 are rotatably attached, and one end side of the actuating pieces _44-1 , _45-1 and the arm portions 41b _-1 , 42b _{- 1} of the discharge gates 41-1, _42-1 are connected to each other. Connecting plates 46 _-1 and 47 _-1 are rotatably attached to each other.

Actuation pieces _44-1 , _45-1 and connecting plates _46-1 , _47-1
A spring 48 _-1 is locked between the connecting parts, and similarly to the above, stoppers 43d _-1 and 43e _-1 protruding from the upper parts of the arms 43b _-1 and 43c _-1 of the separation plate 43 _-1 are operated. The inward movement of pieces 44 _-1 and 45 _-1 is stopped.

Furthermore, at the center of the inner side of the weighing hopper 40 _-1 , the upper end is located on the extension line of the boundary between the pair of discharge gates of the pool hopper, and the lower end is located at the discharge gates 41 _-1 and 42.
A partition plate 49 _-1 is attached to the bent portions 41a _-1 and 42a _-1 of -1 so as to abut from above, and _the weighing hopper _{40 -1} is Two storage chambers 50 _-1 and 51 _-1 are formed in.

On the upper back side of the weighing hopper 40 _-1 , there is provided a protruding piece _{23 -1 which} is provided to directly connect the weighing hopper 40 _-1 to the measuring instrument 26 _-1 in the control case 20 -1. , a U-shaped locking portion _52-1 is provided. This locking portion _52-1 is connected to the pool hopper 3.
Similarly to 0 _-1 , two front and rear support rods 52c _-1 and 52d _-1 are horizontally suspended between opposing sides 52a _-1 and 52b _-1 .

This locking portion 52 _-1 is connected to the protruding piece 23 of the housing.
_-1 is locked to the weighing lever 40 _-1 is locked to the weighing device 26
_-1 is supported.

Pool hopper _30-1 and weighing hopper _40-1
When installed on the front part 20a _-1 of the control case,
Each hopper operating piece 34 _-1 , 35 _-1 , 44
_-1 , 45 The free end side of _-1 is the front side of the control housing 20
Drive levers 24a _-1 , 24b _-1 provided on a _-1 ,
They are located at the bottom of 25a _-1 and 25b _-1 , respectively. Therefore, for example, the actuating piece 4 of the weighing hopper 40 _-1
When _4-1 is rotated counterclockwise (in FIG. 3) by drive lever 25a _-1 , actuating piece _44-1
One end side rotates outward, and the connecting plate 46 _-1 moves counterclockwise (in FIG. 5), thereby opening the discharge gate 41 _-1 . Drive lever 2
5a _-1 is no longer driven, one end of the actuating piece 44 _-1 closes the discharge gate 41 by the biasing force of the spring 48 _-1.
-1 will be closed.

In addition, other control cases 20 _-2 to 20 _-o , pool hoppers 30 _-2 to 30 _-o , and weighing hoppers 40 _-2 to 4
The configuration of 0 _-o is also exactly the same as the above configuration.

As shown in Fig. 2, below the weighing hoppers _40-1 to 40 _-o , the objects to be weighed are received and transported to be discharged from the weighing hoppers _40-1 to 40 _-o . A collection conveyor 53 is provided.

The objects to be weighed discharged onto the collection conveyor 53 are conveyed to the packaging machine 54 by the collection conveyor 53,
The packaging machine 54 wraps them all at once.

Note that the driving of the shutters 21 _-1 to 21 _-o and the opening and closing of the discharge gates of each hopper are performed by a control section. FIG. 6 is a diagram showing a schematic configuration of this control section.

In the figure, 55 _-1 to 55 _-o represent each measuring instrument 26
In response to the weighing signal from _-1 to 26 _-o , the storage chambers 50 _{-1 to} 50 -o, _{51 -1 of} each weighing hopper 40 ₁ to 40 _o
~51 _- A weighing value calculation circuit that calculates the weight value of the object to be weighed housed in -o and stores the calculated weight value.

56 performs a combination calculation on all different combinations based on each weight value from the weighing value calculation circuits 55 _-1 to 55 _-o each time the combination signal A is input, and selects the optimal combination for the target weight. This is a combination selection circuit that outputs this selection signal.

This combination signal A is input, for example, by an operator operating a foot switch.

57 is a discharge control device which receives a selection signal from the combination selection circuit 56 and sends a discharge signal to the opening/closing drive device in the control case corresponding to the selection signal to discharge the objects to be weighed whose combination has been selected. .

This discharge control device 57 opens the discharge gate of the pool hopper corresponding to the discharged and empty storage chamber in response to a storage signal, and stores the object to be weighed in the pool hopper into each storage chamber.

<Operation of the above embodiment> Next, the operation of the above embodiment will be explained.

It is assumed in advance that no object to be weighed is stored in any of the pool hoppers 30 _-1 to 30 _-o and weighing hoppers 40 _-1 to 40 _-o .

Here, when the objects to be weighed are manually input into each pool hopper 30 _-1 to 30 _-o from the input ports 15b _-1 to 15b _-o , the objects to be weighed are stored in the weighing hoppers 40 _-1 to 40 _-o . Emission control device 57
Each control case 20 _-1 to 2
One (for example, left side) drive lever 24a _-1 of 0 _-o
~24a _-o rotate counterclockwise (in Figure 3). For this reason, each pool hopper is 30 _-1 to 30
The operating pieces 34 _-1 to 34 _-o on one _side of -o rotate, and the connecting plates 36 _-1 to 36 _-o rotate counterclockwise (in Fig. 4) to close the discharge gate 31 on one side. _-1 to 31
_-o opens and the stored object to be weighed is discharged.

While the discharge gates 31 _-1 to 31 _-o are open,
Each shutter 21 _-1 to 21 _-o has its own input port 1.
5b _-1 to 15b _-o are blocked to prevent incorrect input.

The objects to be weighed discharged from each pool hopper 30 _-1 to 30 _-o are transferred to weighing hoppers 40 _-1 to 40 _-o, respectively.
are accommodated in storage chambers 50 _-1 to 50 _-o on one side.
The object to be weighed is weighed by each of the measuring instruments 26 _-1 to 26 _-o , and in the measured value calculation circuits 55 _-1 to 55 _-o , the object to be measured stored in the left side storage chambers 50 _-1 to 50 _{-o is} weighed. is stored as a weight value.

When the objects to be weighed are stored in each weighing hopper 40 _-1 to 40 _-o and the discharge gates 31 _-1 to 31 _-o of each pool hopper 30 _-1 to 30 _-o are closed, each shutter 21 _-1
~21 _-o are housed in the control casings _20-1 ~20 _-o , and each input port 15b _-1 ~15b _-o is opened.

When the next object to be weighed is put into the pool hopper 30 _-1 to 30 _-o , the other side (right side) discharge gate 32 _-1 to
32 _-o is opened, and the objects to be weighed are stored in the storage chambers 51 _-1 to 51 _-o on the other side of the weighing hoppers 40 _-1 to 40 _-o .

This measured value is calculated by the measured value calculation circuit 55 _-1 to 55 _-o
The weight values of the objects to be weighed stored in the left side storage chambers 50 _-1 to 50 _-o are subtracted from each of the measured values, and the subtraction results are sent to the right side storage chambers 51 _-1 to 50 -o.
51 _-o are respectively stored as weight values of the objects to be weighed.

Here, when the combination signal A is input by operating a foot switch or the like, the weighing value calculation circuit 55 _-1
Based on each weight value stored in ~55 _-o , the optimal combination for the target weight is selected.

At this time, for example, if a combination of the objects to be weighed stored in the left storage chamber 50 _-1 of the weighing hopper 40 _-1 is selected, the drive lever 25a _-1 is rotated by the discharge signal from the discharge control device 57. Then, the operating piece _44-1 of the weighing hopper _40-1 rotates counterclockwise (in FIG. 5), so the discharge gate _41-1 opens, and the object to be weighed stored in the storage chamber _50-1 is released. ,
The objects to be weighed are discharged to the collection conveyor 53 together with other objects to be weighed that have been selected for combination.

The objects to be weighed that have been discharged onto the collection conveyor 53 are transported and packaged by the packaging machine 54.

When the storage chamber 50 _-1 is empty, the discharge control device 57
In response to the storage signal, the drive lever 24a _-1 is driven, the discharge gate _31-1 of the pool hopper _30-1 is opened, the next object to be weighed is stored in the storage chamber _50-1 , and its weight value is stored. be done.

Thereafter, in the same manner, the objects to be weighed whose combinations have been selected are sequentially discharged each time the combination signal A is input.

In addition, when it is necessary to inspect each pool hopper 30 _-1 to 30 _-o , weighing hopper 40 _-1 to 40 _-o , collection conveyor 53, etc., as shown in FIG.
The front part 15c of No. 5 is rotated upward to perform inspection work.

<Other embodiments of the present invention> (Fig. 7) In the above embodiments, the weighing hoppers 40 _-1 to 4
The objects to be weighed discharged from 0 _-o are collected on conveyor 53.
However, instead of the collecting conveyor, a collecting chute may be provided to collect the discharged objects to be weighed.

In addition, in the above embodiment, each hopper was arranged facing the front side of the device, but this is different from the arrangement in which each hopper is arranged facing one side of both sides of the device, as shown in Fig. 7. You can also do this.

<Effects of the present invention> As explained above, the combination weighing device of the present invention has a plurality of input ports arranged in a line on the top surface of the housing,
A plurality of pool hoppers are fixedly arranged in a line at positions to accommodate the objects to be weighed that are input from each input port, and the objects to be weighed stored in each pool hopper are placed on an extension line of the boundary between the pair of discharge gates of each pool hopper. The weighing hopper has a pair of storage chambers divided into two by a partition plate, and each of the weighing hoppers has a pair of storage chambers. The weight of the stored objects to be weighed is calculated for each storage chamber, a combination thereof is selected, and the objects to be weighed selected for the combination are discharged and assembled from the storage chambers.

For this reason, the size of the device per input line is determined by the size of one pool hopper and one weighing hopper that are lined up vertically, and since there is no mechanism to move the pool hopper, the entire device can be made much smaller. The distance to the input port or the interval between the input ports can be shortened, and the task of loading objects to be weighed becomes extremely easy. In addition, objects to be weighed can be stored in the storage chamber of the weighing hopper by simply opening and closing the discharge gate without moving the pool hopper, which greatly speeds up the loading of objects to be weighed. The number of measuring instruments can be halved compared to conventional methods, making maintenance work much easier and reducing costs significantly.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view showing one embodiment of the present invention, and FIG. 2 is a sectional view taken along the line -' in FIG.
FIG. 3 is a perspective view showing the main parts of the embodiment, FIG. 4 is a rear view of the pool hopper of the embodiment, and FIG. 5 is a rear view of the weighing hopper of the embodiment. FIG. 6 is a schematic block diagram showing the control section of the embodiment, FIG. 7 is a schematic plan view showing another embodiment of the present invention, FIG. 8 is a schematic plan view of a conventional device, and FIG. 8 is a sectional view taken along the line -' in FIG. 8. 15b _-1 ~15b _-o ... Input port, 20 _-1 ~20 _-o
...Control case, 21 _-1 to 21 _-o ...Shutter, 2
6 _-1 ~ 26 _-o ... Measuring instrument, 30 _-1 ~ 30 _-o ... Pool hopper, 31 _-1 ~ 31 _-o , 32 _{-1 ~} 32 _-o ...
...Discharge gate, 33 _-1 ~ 33 _-o ... Separation plate, 40
_-1 ~40 _-o ...Weighing hopper, 41 _-1 ~41 _-o ,4
2 _-1 ~42 _-o ...Discharge gate, 43 _-1 ~43 _-o ...
...Separation plate, 49 _-1 ~ 49 _-o ...Partition plate, 50 _-1 ~
50 _-o , 51 _-1 to 51 _-o ...storage room, 53...collecting conveyor, 55 _-1 to 55 _-o ...measurement value calculation circuit, 56...combination selection circuit, 57...discharge control device.

Claims (1)

[Scope of Claims] 1. A plurality of input ports arranged in a straight line on the upper surface of the casing; 2. Temporarily storing the objects to be weighed inputted from each of the input ports, and 2. a plurality of pool hoppers arranged and fixed in a straight line, each having a pair of discharge gates for allowing the discharge to fall to two different positions; a pair of openings provided corresponding to the pair of discharge gates; The pool hopper is divided into two chambers by a partition plate provided on an extension of the boundary line between the pair of discharge gates in the pool hopper, in order to separately receive and store the objects to be weighed discharged from the discharge gates from the respective openings. a plurality of weighing hoppers arranged in a straight line, the plurality of weighing hoppers having a pair of storage chambers and a pair of discharge gates provided corresponding to each of the storage chambers for discharging the stored objects to be weighed; a plurality of weighing instruments provided for each weighing hopper and measuring the weight of the objects to be weighed stored in the weighing hoppers; and a plurality of weighing instruments provided corresponding to the plurality of weighing instruments, based on weighing signals from the weighing instruments a plurality of weight value calculation circuits that calculate the weight of the object to be weighed stored in the weighing hopper corresponding to the weighing device for each of the storage chambers; and a combination of weights calculated by each of the weight value calculation circuits. a combination selection circuit that selects an optimal combination; a discharge control device that discharges the objects to be weighed selected by the combination selection circuit from the storage chamber; and a gathering means that collects the objects to be weighed that have been discharged from the storage chamber. A combination weighing device equipped with.